AND REED, CLERKENWELL, ENGLAND, 1838
Three train, rack & snail quarter strike with chime drum (Westminster tune). Post
and strap frame, Graham deadbeat escapement , Bolt and shutter maintaining power. 1 1/2
second wooden pendulum rod with 110lbs. cylindrical bob. Clock without weights is 1000
lbs., with weights est. over 1 ton. 72"w x 36"h x 30"d.
The clock came from The Church of St. Sepulcher-without-Newgate, London, England. A
black and white photo of on it's original location around 1939 is shown. Notice the
slender connecting rod and small motion works compared to the large movement. Clearly the
church has a fairly small dial in it's tower, but a heavy set of bells! The
remaining photos are of the church as it appears currently. Notice the very
small clock dial.
The escapement was converted in 1891 by John Moore & Sons to run four days per
winding from the former one day. Imagine having to wind this up every day! As far as I can
tell there was no provision for a reduction gear on the clock. There may (or must have!)
been such on the winding crank itself. The weight needed just to turn the chime drum is
300lbs. and it takes 100lbs. to turn the hour strike train. Note that these
are the weights needed without the strike train being loaded with the work
necessary to raise the hammers. At the same time I can run the going train
on just 15lbs., however this is using a 4 foot pendulum with the original
bob. I can't fit a 12 foot pendulum in my basement's 8 foot ceiling height!
Thwaites is one of the few remaining tower clock companies still in business. Clock
drawings by Thwaites were supposedly seen dated 1610, but the first recorded fully
manufactured major clock by Aynsworth Thwaites was in 1751. His son sons established the
partnership with George Jeremiah Reed, and this partnership is the foundation of the